Original Certificate
MSA-QS-109

SEIKITOKYU KOGYO CO., LTD.
2-9-3 Shibakoen, Minato-ku, Tokyo 105-8509, JapanJIS Q 9001:2015(ISO 9001:2015)
Certification No.: MSA-QS-109
This is to certify that the quality management system of the above organization meets the requirementsof the applicable standard in the following areas:
Certified management system:

Design and construction of pavements and civil engineering structures.
Detailed information of sites/departments included in the scope of certification:

The certification number above and the following effective date arerecorded in the attached appendix.

Date of issueEffective date
Date of expiration

17 November 1998
19 October 2022
26 September 2025

Date of original issue
Date of revision
Date of recertification

17 November 1998
4 October 2022
28 September 2022

Management System Assessment Center Co., Ltd.
2-2-12 Hamamatsucho, Minato-ku, Tokyo 105-0013, Japan

Shinji Fujii, President & Chief Executive
This certificate is comprised of a certificate and an appendix in electronic format.
The copyright, design, and trademark belong to MSA.
For the validity of this certificate, please email tourokubu@msac.co.jp.

Appendix to Certificate
Certification No.: MSA-QS-109
MSA-QS-109

Detailed information of sites/departments included in the scope of certification:< Same as certified scope >BUSINESS PROMOTION HEAD OFFICE (SALES & MARKETING DEPT., U.S.
MILITARY CONSTRUCTION DEPT., INTERNATIONAL DEPT., CONSTRUCTION DEPT.,CONSTRUCTION MACHINERY & PROCUREMENT DEPT., SAFETY &ENVIRONMENTAL AFFAIRS & QUALITY CONTROL DEPT.), TECHNOLOGYMANAGEMENT HEAD OFFICE (TECHNOLOGY DEPT.)
2-9-3 Shibakoen, Minato-ku, Tokyo, Japan
HOKKAIDO BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTAL AFFAIRS& QUALITY CONTROL DIVISION)
5-8-5 Kita 7-Jo-Nishi, Kita-ku, Sapporo-shi, Hokkaido, JapanDOOU BRANCH
4-2-1 Yonesato 1-Jo, Shiroishi-ku, Sapporo-shi, Hokkaido, JapanOBIHIRO OFFICE
64-2 Reisakubetsu, Toyokoro-cho, Nakagawa-gun, Hokkaido, JapanKOSHIMIZU OFFICE
144-1 Nakasato, Koshimizu-cho, Shari-gun, Hokkaido, JapanATTOKO OFFICE
2-125 Attoko, Nemuro-shi, Hokkaido, JapanDONAN OFFICE
80 Harumi, Mukawa-cho, Yufutsu-gun, Hokkaido, Japan
OSHIMA OFFICE
224-10 Fujishiro, Nanae-cho, Kameda-gun, Hokkaido, JapanTOHOKU BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., FUKUSHIMA RECONSTRUCTION
DEPT., SAFETY & ENVIRONMENTAL AFFAIRS & QUALITY CONTROL DIVISION)
2-3-10 Honcho, Aoba-ku, Sendai-shi, Miyagi-ken, Japan
IWATE BRANCH
2-19-9 Kado, Morioka-shi, Iwate-ken, Japan
HANAMAKI OFFICE
2-2 Dai 15-Chiwari, Ishidoriyacho-kochi, Hanamaki-shi, Iwate-ken, JapanSANRIKU OFFICE
1-5-12-1 Nishimachi, Miyako-shi, Iwate-ken, Japan

Date of issue
Effective date
Date of expiration

17 November 1998
19 October 2022
26 September 2025

Date of original issue
Date of revision
Date of recertification

This certificate is comprised of a certificate and an appendix in electronic format.
The copyright, design, and trademark belong to MSA.
For the validity of this certificate, please email tourokubu@msac.co.jp.

17 November 1998
4 October 2022
28 September 2022

(1/7)

Appendix to Certificate
Certification No.: MSA-QS-109
MSA-QS-109

Detailed information of sites/departments included in the scope of certification:< Same as certified scope >MIYAGI BRANCH
2-6-30 Kasuminome, Wakabayashi-ku, Sendai-shi, Miyagi-ken, JapanFURUKAWA BRANCH
6-3-20 Furukawaekimaeodori, Osaki-shi, Miyagi-ken, Japan
KUROKAWA OFFICE
2-5-1 Kamisakuragi, Tomiya-shi, Miyagi-ken, Japan
AOMORI BRANCH
124-1 Namioka-Aza-Wakamatsu, Namioka, Aomori-shi, Aomori-ken, JapanHACHINOHE OFFICE
5-5-43 Hibakari, Hachinohe-shi, Aomori-ken, Japan
AKITA BRANCH
157-1 Oyachi, Iijima-Kokucho, Akita-shi, Akita-ken, JapanYUZAWA BRANCH
73-1 Tsuchitoi, Sekiguchi, Yuzawa-shi, Akita-ken, Japan
YOKOTE OFFICE
121 Okamizakai, Kamizakai, Yokote-shi, Akita-ken, JapanYAMAGATA BRANCH
1-5-30 Emata, Yamagata-shi, Yamagata-ken, Japan
SAKATA OFFICE
1-1-23 Kamiyasucho, Sakata-shi, Yamagata-ken, Japan
FUKUSHIMA BRANCH
1-1 Takenouchi, Hiwadamachi, Koriyama-shi, Fukushima-ken, JapanMINAMISOMA BRANCH
24 Sanjimmae, Onaba, Odaka-ku, Minamisoma-shi, Fukushima-ken, Japan
HOKURIKU BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTAL AFFAIRS& QUALITY CONTROL DIVISION)
1-3-11 Benten, Chuo-ku, Niigata-shi, Niigata-ken, JapanJOETSU BRANCH
4389-1 Kamichihara, Joetsu-shi, Niigata-ken, Japan

Date of issue
Effective date
Date of expiration

17 November 1998
19 October 2022
26 September 2025

Date of original issue
Date of revision
Date of recertification

This certificate is comprised of a certificate and an appendix in electronic format.
The copyright, design, and trademark belong to MSA.
For the validity of this certificate, please email tourokubu@msac.co.jp.

17 November 1998
4 October 2022
28 September 2022

(2/7)

Appendix to Certificate
Certification No.: MSA-QS-109
MSA-QS-109

Detailed information of sites/departments included in the scope of certification:< Same as certified scope >NIIGATA BRANCH
1478 Sone, Nishikan-ku, Niigata-shi, Niigata-ken, JapanTOYAMA BRANCH
175-1 Tsukahara, Toyama-shi, Toyama-ken, JapanKITAKANTO BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTAL AFFAIRS& QUALITY CONTROL G.)
2-1-1 Takasago, Urawa-ku, Saitama-shi, Saitama-ken, JapanSAITAMAHIGASHI BRANCH
8-9-9 Higashiurawa, Midori-ku, Saitama-shi, Saitama-ken, JapanSAITAMANISHI BRANCH
22-1 Fujimicho, Kawagoe-shi, Saitama-ken, JapanKITAKANTO BRANCH
612-1 Sekigawacho, Sano-shi, Tochigi-ken, JapanGUMMA OFFICE
257-1 Asakuramachi, Maebashi-shi, Gumma-ken, JapanHIGASHIKANTO BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES& MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTALAFFAIRS & QUALITY CONTROL G.)
1106 Muratacho, Chuo-ku, Chiba-shi, Chiba-ken, JapanCHIBA BRANCH
1106 Muratacho, Chuo-ku, Chiba-shi, Chiba-ken, JapanKEIYO BRANCH
1-33-8 Surugadai, Funabashi-shi, Chiba-ken, Japan
TOKATSU BRANCH
4-5-15 Shibasakidai, Abiko-shi, Chiba-ken, Japan
IBARAKI OFFICE
655 Kakuraicho, Mito-shi, Ibaraki-ken, Japan

Date of issue
Effective date
Date of expiration

17 November 1998
19 October 2022
26 September 2025

Date of original issue
Date of revision
Date of recertification

This certificate is comprised of a certificate and an appendix in electronic format.
The copyright, design, and trademark belong to MSA.
For the validity of this certificate, please email tourokubu@msac.co.jp.

17 November 1998
4 October 2022
28 September 2022

(3/7)

Appendix to Certificate
Certification No.: MSA-QS-109
MSA-QS-109

Detailed information of sites/departments included in the scope of certification:< Same as certified scope >TOKYO BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., URBAN DEVELOPMENT DEPT.,
SAFETY & ENVIRONMENTAL AFFAIRS & QUALITY CONTROL G.)
42-6 Udagawacho, Shibuya-ku, Tokyo, Japan
RAILWAY CONSTRUCTION BRANCH
1-48-21 Suenaga, Takatsu-ku, Kawasaki-shi, Kanagawa-ken, JapanTOKYOHIGASHI BRANCH
4-6-7 Higashikasai, Edogawa-ku, Tokyo, JapanTOKYONISHI BRANCH
1-8-11 Iwadominami, Komae-shi, Tokyo, JapanSHIBUYA BRANCH
42-6 Udagawacho, Shibuya-ku, Tokyo, Japan
TAMA BRANCH
2-1-12 Shimmei, Hino-shi, Tokyo, JapanNISHITAMA BRANCH
3-4-29 Matsubaracho, Akishima-shi, Tokyo, Japan
DEVELOPMENT CONSTRUCTION BRANCH
42-6 Udagawacho, Shibuya-ku, Tokyo, Japan
YOKOHAMA BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTAL AFFAIRS& QUALITY CONTROL G.)
22 Yamashitacho, Naka-ku, Yokohama-shi, Kanagawa-ken, Japan
YOKOHAMA BRANCH
3-1-31 Edaminami, Tsuzuki-ku, Yokohama-shi, Kanagawa-ken, Japan
KONAN BRANCH
9-27-6 Konandai, Konan-ku, Yokohama-shi, Kanagawa-ken, Japan
KENOH BRANCH
5-10-2 Okata, Atsugi-shi, Kanagawa-ken, Japan

Date of issue
Effective date
Date of expiration

17 November 1998
19 October 2022
26 September 2025

Date of original issue
Date of revision
Date of recertificationThis certificate is comprised of a certificate and an appendix in electronic format.
The copyright, design, and trademark belong to MSA.
For the validity of this certificate, please email tourokubu@msac.co.jp.

17 November 1998
4 October 2022
28 September 2022

(4/7)

Appendix to Certificate
Certification No.: MSA-QS-109
MSA-QS-109

Detailed information of sites/departments included in the scope of certification:< Same as certified scope >NAGOYA BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTAL AFFAIRS& QUALITY CONTROL DIVISION)
5-24-32 Imaike, Chikusa-ku, Nagoya-shi, Aichi-ken, JapanSHIZUOKA BRANCH
136-10 Kawashimata, Gotemba-shi, Shizuoka-ken, JapanITO OFFICE
1110-36 Futatsuka, Yawatano, Ito-shi, Shizuoka-ken, JapanSHIMODA OFFICE
2-8 Higashihongo, Shimoda-shi, Shizuoka-ken, JapanNAGOYA BRANCH
13-5 Ohayashi, Kagiyamachi, Tokai-shi, Aichi-ken, JapanMIE BRANCH
296 Tomitane, Kisosaki-cho, Kuwana-gun, Mie-ken, Japan
GIFU OFFICE
3-27 Fujimicho, Tajimi-shi, Gifu-ken, JapanKISO BRANCH3671 Yomikaki, Nagiso-machi, Kiso-gun, Nagano-ken, JapanKANSAI BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTAL AFFAIRS& QUALITY CONTROL DIVISION)
7-8 Nozakicho, Kita-ku, Osaka-shi, Osaka, JapanOSAKA BRANCH
1-25-3 Sangamaki, Takatsuki-shi, Osaka, Japan
KOBE BRANCH
4-2096-3 Kitabefu, Nishi-ku, Kobe-shi, Hyogo-ken, Japan
NARA BRANCH
1137-1 Nukatabe-Kitamachi, Yamatokoriyama-shi, Nara-ken, JapanOSAKAMINAMI OFFICE
1-25-3 Sangamaki, Takatsuki-shi, Osaka, Japan

Date of issue
Effective date
Date of expiration

17 November 1998
19 October 2022
26 September 2025

Date of original issue
Date of revision
Date of recertification

This certificate is comprised of a certificate and an appendix in electronic format.
The copyright, design, and trademark belong to MSA.
For the validity of this certificate, please email tourokubu@msac.co.jp.

17 November 1998
4 October 2022
28 September 2022

(5/7)

Appendix to Certificate
Certification No.: MSA-QS-109
MSA-QS-109

Detailed information of sites/departments included in the scope of certification:< Same as certified scope >CHUSHIKOKU BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTAL AFFAIRS& QUALITY CONTROL DIVISION)
1-23 Kyobashicho, Minami-ku, Hiroshima-shi, Hiroshima-ken, Japan
OKAYAMA BRANCH
324-1 Tsudaka, Kita-ku, Okayama-shi, Okayama-ken, Japan
KURASHIKI OFFICE
2059 Tsubue, Kurashiki-shi, Okayama-ken, JapanHIROSHIMA BRANCH
1-12-25 Midorii, Asaminami-ku, Hiroshima-shi, Hiroshima-ken, Japan
IWAKUNI OFFICE
1-1-17 Motomachi, Iwakuni-shi,Yamaguchi-ken, JapanSHIKOKU OFFICE
891-2 Kinseicho-Yamadai, Shikokuchuo-shi, Ehime-ken, JapanKYUSHU BRANCH OFFICE (BRANCH OFFICE MANAGEMENT DEPT., SALES &MARKETING DEPT., CONSTRUCTION DEPT., SAFETY & ENVIRONMENTAL AFFAIRS& QUALITY CONTROL DIVISION)
1-11-5 Hakataeki-Higashi, Hakata-ku, Fukuoka-shi, Fukuoka-ken, JapanKUMAMOTO BRANCH
983-1 Sugimizu-Aza-Nagayama, Ozu-machi, Kikuchi-gun, Kumamoto-ken, Japan
YAMATO OFFICE1913 Omine-Rokutan, Yamato-cho, Kamimashiki-gun, Kumamoto-ken, JapanFUKUOKA BRANCH
2-8-39 Nakahata, Onojo-shi, Fukuoka-ken, JapanMIYAZAKI BRANCH
1370-4 Komatsu-Aza-Yatsugakubo, Miyazaki-shi, Miyazaki-ken, JapanKAGOSHIMA BRANCH
4549-2 Chirancho-Nishimoto, Minamikyushu-shi, Kagoshima-ken, Japan
OKINAWACHUBU BRANCH
5-2-2 Oyama, Ginowan-shi, Okinawa-ken, Japan

Date of issue
Effective date
Date of expiration

17 November 1998
19 October 2022
26 September 2025

Date of original issue
Date of revision
Date of recertification

This certificate is comprised of a certificate and an appendix in electronic format.
The copyright, design, and trademark belong to MSA.
For the validity of this certificate, please email tourokubu@msac.co.jp.

17 November 1998
4 October 2022
28 September 2022

(6/7)

Appendix to Certificate
Certification No.: MSA-QS-109
MSA-QS-109

Detailed information of sites/departments included in the scope of certification:< Same as certified scope >OKINAWAHOKUBU OFFICE
8036-10 Kin, Kin-cho, Kunigami-gun, Okinawa-ken, Japan

Date of issue
Effective date
Date of expiration

17 November 1998
19 October 2022
26 September 2025

Date of original issueDate of revision
Date of recertification

This certificate is comprised of a certificate and an appendix in electronic format.
The copyright, design, and trademark belong to MSA.
For the validity of this certificate, please email tourokubu@msac.co.jp.

17 November 1998
4 October 2022
28 September 2022

(7/7)